Entirely developed, designed and produced in Denmark by CeramicSpeed. The Oversized Pulley Wheel System (OSPW) is a technologic advance for the cycling industry. Matching the highest quality materials with a unique design, the OSPW System delivers lower friction and longer lifetime, improving your competitive advantage.
Thanks to the OSPW System the power savings start at 40%, and the CeramicSpeed Bearing inside guarantees a 3-5 times longer lifetime. The watt savings with a CeramicSpeed OSPW System start at about 1.6 watts and more.
Coated bearings come with an extremely thin (2-3 microns) protective layer, which is 75% harder than hardened steel. This is applied to the entire raceway, and makes the bearing even more resistant to contamination, as well as further reducing friction.
Only suitable for SRAM eTap derailleurs.
Included in delivery: pulley wheel system, oil, sticker sheet, Torx T6
Material: pulleys: aluminum
bearings: stainless steel with ceramic balls